As noted in another thread, my setup is the same with the addition of a focus light, Nauticam flip diopter holder and Dyron +7 diopter, and Port 56, mine is about 11 pounds on land. With 6 jumbo Stix floats, it is about 0.25 pounds UW.

Far lighter on land than my D700, Ikelite housing, Ikelite SB-160s,Ikelite tray, and focus light, which is about 22 pounds. Ironically, 8 Stix floats will make that rig about 0.25 UW. Shows how much airspace is in the Ikelite housing. When I weighed them in a tub with a luggage scale, they were both about 3 and a half pounds negative before the Stix floats.